<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>canvas</title>
</head>
<body>
	<canvas id="myCanvas" style="display:block;margin:50px auto;">
        当前浏览器不支持Canvas，请更换浏览器后再试
    </canvas>
</body>
<script src="js/digit.js"></script>
<script src="js/index.js"></script>
</html>